POSER PRO GAME DEV ISSUE

As of yesterday my poser 10 game dev will not open. it says the grace period for using has expired enter password to activate. I do so and it says the maximum number of activations for this license has been exceeded with an insert password tab which takes me the grace period window and basically forms a loop.

I also have Poser 11 installed but prefer 10/dev will uninstalling 11 fix this issue?

I've been curious about this and it's the main reason why I held off buying PP11. What determines the expiration of an activation? Just the passage of time or any hardware changes you make to your pc as well? And what happens if you cannot get a reply from SM in a timely manner and you need to use the program? Is there any way you can get a permanent activation and not go through all this? As I said, I'd love to try Superfly and PP11 but I've read way too many threads like this even back in the old SM forum at RDNA and that has put me off so I'm still on PP2014.